The economics of oak barrels

Where the price comes from

A 225-litre Bordeaux barrique or 228-litre Burgundy pièce is made from about 150-year-old oak from the French state forests (Tronçais, Allier, Vosges), split rather than sawn, seasoned outdoors for two to three years, then toasted. Cooperage price lists and trade reporting put a new French barrel at $1,000–1,500, with premium cooperages and specific forests above $2,000; American oak is roughly half. Prices rose sharply in 2022–2024 with energy and timber costs.

Per bottle

Three hundred bottles per barrel. A first growth using 100% new oak once for the grand vin, then selling the barrel to a second wine or another estate, spends $3–5 a bottle on oak. A Barolo producer using large Slavonian casks for decades spends cents. Champagne, aged in tank and bottle, spends nothing on oak except at houses like Krug and Bollinger that ferment in old casks.

The used-barrel market

Second- and third-use barrels trade at a fraction of new — a few hundred dollars — which is how smaller estates access good oak and how the first growths' cost per bottle falls: the barrel's residual value is a credit against the grand vin. Corkonomics' cost model amortises each barrel over its uses and weights by the share of new oak, which is why the oak line for a cult Napa Cabernet is several times a Rioja's.

What oak is not

Oak is not the reason a bottle costs $500. Even at the top, the line is under $10 a bottle. It is a signal — 100% new oak says the estate can afford it — and a flavour, and it is a real cost; but the land under the vines and the name on the label are worth more.